How can the provided PHP code be debugged effectively to identify and resolve any issues related to tracking clicks in a database?

The issue with the provided PHP code could be related to incorrect database connection settings, query syntax errors, or missing error handling. To effectively debug and resolve the issue, it is important to check the database connection, ensure the query is correct, and implement proper error handling to identify any issues.

<?php
// Database connection settings
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "dbname";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Update click count in the database
$click_id = $_GET['id'];
$sql = "UPDATE clicks SET count = count + 1 WHERE id = $click_id";

if ($conn->query($sql) === TRUE) {
    echo "Click tracked successfully";
} else {
    echo "Error updating record: " . $conn->error;
}

$conn->close();
?>